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Heyold guy, the flow specs you listed here, that's for a regular Stealth? What level of work? Thanks. S/F....Ken M



Yes, that is for a regular Stealth. What would be your frame of reference for "level of work"? It's just enough work to get the listed flows.



The last set of numbers you posted are obviously a ported set of stealths , CORRECT ?? And are they Stealth or Super Stealth ?

Still waiting to see a comparison of your work on another bench for a reference



Correct, the flows in the above post are a ported set of standard Stealth.

Here are 325cc CNC 440-1 and SUPER Stealth flows from our bench, (1) column is OOTB Indy CNC 325cc 440-1 (avg of 4 ports), (2) is OOTB SUPER Stealth, (3) is ported SUPER Stealth with a very lazy attempt at porting the exhaust. The exhaust port in the Super Stealth, in my opinion, is inferior to the standard Stealth.

Lift...........(1).............(2)..............(3)

.100........66/61.........72/61..........75/65
.200......141/114......147/124.......155/139
.300......212/163......208/161.......218/184
.400......267/207......250/190.......268/216
.500......309/241......276/207.......313/240
.600......347/267......280/217.......344/259
.700......360/285......280/224.......354/275